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1 /* |
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2 * Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of the License "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 |
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19 #include "rsakeypairshim.h" |
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20 #include "cryptokeypairgeneratorapi.h" |
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21 #include "keypair.h" |
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22 #include <cryptospi/cryptoparams.h> |
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23 #include <cryptospi/cryptospidef.h> |
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24 |
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25 using namespace CryptoSpi; |
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26 |
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27 /* CRSAKeyPair */ |
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28 |
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29 const TUint KFermat4 = 65537; |
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30 |
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31 CRSAKeyPairShim* CRSAKeyPairShim::NewLC(TUint aModulusBits, TRSAPrivateKeyType aKeyType) |
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32 { |
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33 CRSAKeyPairShim* self = new(ELeave) CRSAKeyPairShim(); |
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34 CleanupStack::PushL(self); |
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35 self->ConstructL(aModulusBits, aKeyType, KFermat4); |
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36 return self; |
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37 } |
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38 |
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39 CRSAKeyPairShim::~CRSAKeyPairShim(void) |
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40 { |
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41 } |
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42 |
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43 CRSAKeyPairShim::CRSAKeyPairShim(void) |
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44 { |
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45 } |
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46 |
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47 void CRSAKeyPairShim::ConstructL(TUint aModulusBits, TRSAPrivateKeyType aKeyType, TInt aPublicExponent) |
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48 { |
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49 CKeyPairGenerator* keyPairGeneratorImpl=NULL; |
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50 CKeyPairGeneratorFactory::CreateKeyPairGeneratorL( |
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51 keyPairGeneratorImpl, |
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52 KRSAKeyPairGeneratorUid, |
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53 NULL); |
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54 CleanupStack::PushL(keyPairGeneratorImpl); |
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55 |
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56 // put the RSA parameters into an array |
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57 CCryptoParams* keyParameters = CCryptoParams::NewLC(); |
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58 keyParameters->AddL(aPublicExponent, KRsaKeyParameterEUid); |
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59 if (aKeyType == EStandard) |
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60 { |
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61 keyParameters->AddL(KRsaPrivateKeyStandard, KRsaKeyTypeUid); |
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62 } |
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63 else if (aKeyType == EStandardCRT) |
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64 { |
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65 keyParameters->AddL(KRsaPrivateKeyCRT, KRsaKeyTypeUid); |
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66 } |
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67 |
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68 // call the api to create an RSA key pair |
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69 CKeyPair* keyPair = 0; |
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70 keyPairGeneratorImpl->GenerateKeyPairL(aModulusBits, *keyParameters, keyPair); |
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71 |
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72 CleanupStack::PushL(keyPair); |
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73 |
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74 /* |
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75 * Convert the CKeyPair to CRSAPrivateKey{CRT/Standard} and CRSAPublicKey |
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76 * The public key becomes the owner of n and e RIntegers |
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77 */ |
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78 RInteger n = RInteger::NewL(keyPair->PublicKey().GetBigIntL(KRsaKeyParameterNUid)); |
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79 CleanupClosePushL(n); |
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80 RInteger e = RInteger::NewL(keyPair->PublicKey().GetBigIntL(KRsaKeyParameterEUid)); |
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81 CleanupClosePushL(e); |
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82 iPublic = CRSAPublicKey::NewL(n, e); |
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83 |
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84 if (aKeyType == EStandard) |
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85 { |
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86 RInteger n = RInteger::NewL(keyPair->PrivateKey().GetBigIntL(KRsaKeyParameterNUid)); |
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87 CleanupClosePushL(n); |
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88 RInteger d = RInteger::NewL(keyPair->PrivateKey().GetBigIntL(KRsaKeyParameterDUid)); |
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89 CleanupClosePushL(d); |
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90 iPrivate = CRSAPrivateKeyStandard::NewL(n, d); |
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91 CleanupStack::Pop(2, &n); |
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92 } |
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93 else if (aKeyType == EStandardCRT) |
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94 { |
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95 RInteger n = RInteger::NewL(keyPair->PrivateKey().GetBigIntL(KRsaKeyParameterNUid)); |
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96 CleanupClosePushL(n); |
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97 RInteger p = RInteger::NewL(keyPair->PrivateKey().GetBigIntL(KRsaKeyParameterPUid)); |
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98 CleanupClosePushL(p); |
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99 RInteger q = RInteger::NewL(keyPair->PrivateKey().GetBigIntL(KRsaKeyParameterQUid)); |
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100 CleanupClosePushL(q); |
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101 RInteger dp = RInteger::NewL(keyPair->PrivateKey().GetBigIntL(KRsaKeyParameterDPUid)); |
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102 CleanupClosePushL(p); |
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103 RInteger dq = RInteger::NewL(keyPair->PrivateKey().GetBigIntL(KRsaKeyParameterDQUid)); |
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104 CleanupClosePushL(q); |
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105 RInteger qinv = RInteger::NewL(keyPair->PrivateKey().GetBigIntL(KRsaKeyParameterQInvUid)); |
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106 CleanupClosePushL(qinv); |
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107 iPrivate = CRSAPrivateKeyCRT::NewL(n, p, q, dp, dq, qinv); |
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108 CleanupStack::Pop(6, &n); |
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109 } |
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110 /* |
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111 * cleanup stack - it should contain keyPairGeneratorImpl, keyParameters, keyPair, n, e |
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112 */ |
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113 CleanupStack::Pop(2, &n); |
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114 CleanupStack::PopAndDestroy(3, keyPairGeneratorImpl); |
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115 } |